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Low-Cost Position-Sensitive X-Ray Detector

Inactive Publication Date: 2011-12-01
AMERICAN SCI & ENG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Segmented detectors are costly, whereas the mechanical structure required for collimating and scanning a pencil beam is not only costly but also heavy and cumbersome.

Method used

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  • Low-Cost Position-Sensitive X-Ray Detector
  • Low-Cost Position-Sensitive X-Ray Detector
  • Low-Cost Position-Sensitive X-Ray Detector

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Embodiment Construction

[0004]In various embodiments of the present invention, an imaging apparatus is provided for imaging transmission of penetrating radiation through an object. The apparatus has a scintillator region, adapted for translation along a path within the illuminated cross-section of a beam of penetrating radiation. A photodetector detects light emitted by the scintillator region as a function of time, and generates a detection signal corresponding to each position of the scintillator region within the beam cross-section, which is received by a processor, and serves, in turn, to generate an image signal. Finally, the apparatus has a display for depicting an image of the transmitted penetrating radiation based on the image signal. Additionally, the apparatus may have a source for generating the beam of penetrating radiation, with respect to which the scintillator region moves in a plane distal to the object with respect to the source.

[0005]In accordance with alternate embodiments of the invent...

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Abstract

A detector and methods for producing x-ray images, more particularly based on x-rays transmitted through an inspected object. A scintillating region is translated along a path within a cross section of a beam, the cross section taken in a plane distal to the object with respect to a source of the beam. Light emitted by the scintillator region is detected, thereby generating a detection signal, the detection signal is received by a processor which generates an image signal, and an image depicting transmitted penetrating radiation is formed on the basis of the image signal.

Description

[0001]The present application claims priority from U.S. Provisional Application No. 61 / 348,161, filed May 25, 2010, which is incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to systems and methods for producing x-ray images, and, more particularly, for producing images of x-rays transmitted through an inspected object.BACKGROUND ART[0003]Spatial resolution is typically obtained in x-ray transmission images either by means of a segmented detector, where pixels are illuminated in parallel by means of a fan- or cone-shaped x-ray beam, or else by means of a pencil beam that is scanned across an inspected object in a raster fashion. In some applications, transmission images are still obtained by exposure of an x-ray sensitive film. Segmented detectors are costly, whereas the mechanical structure required for collimating and scanning a pencil beam is not only costly but also heavy and cumbersome.SUMMARY OF CERTAIN EMBODIMENTS OF THE INVENTION[0004]In var...

Claims

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Application Information

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IPC IPC(8): G01N23/04G01T1/20
CPCG01V5/0008G01T1/20G01V5/20
Inventor ROTHSCHILD, PETER J.PETUCHOWSKI, SAMUEL J.
Owner AMERICAN SCI & ENG INC